[Dave at Pelican Parts]

From my copy of the PET, the VW (and Porsche) part number for the Dual Relay from a 74 1.8 (a 1.7 would have a 1.7 with D-jet) should be 071 906 059 A. The Pelican catalog seems to list this as NLA from us, so you may have to look elsewhere for it. A quick Google search turns up several hits.

The numbers you cite sound more like Bosch part numbers. The older Bosch catalog I have access to says "Combi-relay, 0 322 514 120", which is the first of the two you list. It shows that number for the 75 1.8, and for the 912E as well.

Are you sure you've got the correct plug? There were some strange variations in a few cases, with added plugs for things like altitude compensators and fuel-cut rev limiters and such.

The 121 part number cross-references to an Alfa, several BMWs, a few Fiats, a Lancia, a couple of Renaults, and the Triumph TR-7.

--DD